I believe you can have a user page, which should be only editable by you. Once you log in the Wiki, click on your username (top, leftmost item) and then you can create your user page if it doesn't exist. Check mine: http://wiki.mobileread.com/wiki/User:Jellby

Con: You have only 1 page, I guess.

What an informative page. I never knew all those things about you, Jellby! ( is the closest thing we have to a sarcasm icon. )